# Representing comparative word problems using bar models (Part 1)

In this lesson, we will draw comparative bar models to solve word problems.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

#### Unit quizzes are being retired in August 2023

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Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.21 children in the playground. 48 children arrive. Then 16 children leave. How many children are there now?

1/5

Q2.There were 25 people on the top deck of the bus, 14 people on the bottom deck of the bus. Then, 13 people left the bus. How many people were left on the bus?

2/5

Q3.There were 31 people on the top deck of the bus and 18 people on the bottom deck of the bus. Then, 22 people left the bus. How many people were left on the bus?

3/5

Q4.There were 19 children at lunch. 40 more children come to lunch. Then, 25 people left the lunch hall. How many children were left at lunch?

4/5

Q5.22 children in the playground. 33 children arrive. Then 40 children leave. How many children are there now?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.21 children in the playground. 48 children arrive. Then 16 children leave. How many children are there now?

1/5

Q2.There were 25 people on the top deck of the bus, 14 people on the bottom deck of the bus. Then, 13 people left the bus. How many people were left on the bus?

2/5

Q3.There were 31 people on the top deck of the bus and 18 people on the bottom deck of the bus. Then, 22 people left the bus. How many people were left on the bus?

3/5

Q4.There were 19 children at lunch. 40 more children come to lunch. Then, 25 people left the lunch hall. How many children were left at lunch?

4/5

Q5.22 children in the playground. 33 children arrive. Then 40 children leave. How many children are there now?

5/5

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Representing comparative word problems using bar models

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Sally has two books. Megan has three more. How many books does Megan have?

1/5

Q2.Ben has 12 crayons. Levi has 4 more. How many crayons does Levi have?

2/5

Q3.Levi has 16 crayons. Ben has 4 fewer. How many crayons does Ben have?

3/5

Q4.Lauren bakes 13 cakes. Graham bakes 5 more. How many cakes does Graham bake?

4/5

Q5.Lauren bakes 14 cakes. Graham bakes 3 fewer. How many cakes does Graham bake?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Representing comparative word problems using bar models

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Sally has two books. Megan has three more. How many books does Megan have?

1/5

Q2.Ben has 12 crayons. Levi has 4 more. How many crayons does Levi have?

2/5

Q3.Levi has 16 crayons. Ben has 4 fewer. How many crayons does Ben have?

3/5

Q4.Lauren bakes 13 cakes. Graham bakes 5 more. How many cakes does Graham bake?

4/5

Q5.Lauren bakes 14 cakes. Graham bakes 3 fewer. How many cakes does Graham bake?

5/5

# Lesson summary: Representing comparative word problems using bar models (Part 1)

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## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Walk

On the spot:
Dance